Zobrazeno 1 - 10
of 266
pro vyhledávání: '"Walden, A. T."'
Publikováno v:
Journal of Aviation / Aerospace Education & Research. 2024, Vol. 33 Issue 2, p293-316. 24p.
Autor:
Lutzeyer, J. F., Walden, A. T.
The extended Davis-Kahan theorem makes use of polynomial matrix transformations to produce bounds at least as tight as the standard Davis-Kahan theorem. The optimization problem of finding transformation parameters resulting in optimal bounds from th
Externí odkaz:
http://arxiv.org/abs/1908.03465
Autor:
Lutzeyer, J. F., Walden, A. T.
The Davis-Kahan theorem can be used to bound the distance of the spaces spanned by the first $r$ eigenvectors of any two symmetric matrices. We extend the Davis-Kahan theorem to apply to the comparison of the union of eigenspaces of any two symmetric
Externí odkaz:
http://arxiv.org/abs/1908.03462
Autor:
Lutzeyer, J. F., Walden, A. T.
Typically, graph structures are represented by one of three different matrices: the adjacency matrix, the unnormalised and the normalised graph Laplacian matrices. The spectral (eigenvalue) properties of these different matrices are compared. For eac
Externí odkaz:
http://arxiv.org/abs/1712.03769
Autor:
Zhuang, L., Walden, A. T.
We consider two types of averaging of complex covariance matrices, a sample mean (average) and the sample Fr\'echet mean. We analyse the performance of these quantities as estimators for the true covariance matrix via `intrinsic' versions of bias and
Externí odkaz:
http://arxiv.org/abs/1711.10646
Distinguishing the Job Market Across Aerospace and Aviation: A Natural Language Processing Approach.
Autor:
Walden, Austin T.1, Pritchard, Michael J.1
Publikováno v:
Collegiate Aviation Review International. 2023, Vol. 41 Issue 2, p103-118. 16p.
Publikováno v:
In Inorganica Chimica Acta 1 March 2022 532
Akademický článek
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Autor:
Chandna, Swati, Walden, Andrew T.
This paper proposes a frequency domain approach to test the hypothesis that a complex-valued vector time series is proper, i.e., for testing whether the vector time series is uncorrelated with its complex conjugate. If the hypothesis is rejected, fre
Externí odkaz:
http://arxiv.org/abs/1605.05910
Autor:
Wolstenholme, R. J., Walden, A. T.
In the context of the graph matching problem we propose a novel method for projecting a matrix $Q$, which may be a doubly stochastic matrix, to a permutation matrix $P.$ We observe that there is an intuitve mapping, depending on a given $Q,$ from the
Externí odkaz:
http://arxiv.org/abs/1604.04235